smartest-project-addition

name	smartest-project-addition
description	Use when you want exactly one high-impact, concrete proposal for the next project addition.
license	MIT
metadata	{"author":"Petr Král (pekral.cz)"}

Constraints

• Apply @rules/php/core-standards.mdc only once it is established that the project is a PHP project (PHP stack in composer.json) and the proposed addition touches PHP code — skip it for a non-PHP project or a non-code proposal; do not load the PHP standards when the addition does not touch PHP.
• Recommend exactly one addition
• Do not include alternative proposals in the final answer
• Do not implement code unless explicitly requested

Use when

• You want the single most valuable next addition to the project
• You want a concrete recommendation, not a list of ideas

Required approach

• Inspect the current repository and identify the strongest leverage point across architecture, DX, reliability, performance, security, or delivery speed
• Evaluate candidate ideas by:
  • impact
  • implementation complexity
  • risk
  • reversibility
• Select exactly one proposal with the best overall leverage

Output

Provide:

• a concise proposal statement
• why this is the best next addition now
• expected business and technical benefits
• key risks and mitigations
• smallest safe implementation plan
• test/validation strategy
• rollout and rollback notes

Done when

• The recommendation is concrete, measurable, and actionable
• The final answer contains exactly one proposal
• The proposal is justified by impact relative to complexity and risk